ET MALWARE NgrBot IRC CnC Channel Join

Query · suricata

flow:established,to_server;
content:"PASS ngrBot";
content:"NICK"; distance:0;
Raw source ET MALWARE NgrBot IRC CnC Channel Join · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE NgrBot IRC CnC Channel Join";
    flow:established,to_server;
    content:"PASS ngrBot";
    content:"NICK"; distance:0;
    reference:url,stopmalvertising.com/rootkits/analysis-of-ngrbot.html;
    classtype:command-and-control;
    sid:2013451; rev:3;
    metadata:created_at 2011_08_24, signature_severity Major, updated_at 2019_07_26;
)

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